Term
The sheet of lead in a cassette serves what purpose?
a. To filter the beam
b. To protect the patient
c. To act as a reflective layer
d. To help prevent back scatter |
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Definition
| d. To help prevent back scatter |
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Term
Using an extremity cassette will have which effect?
a. it will decrease patient exposure
b. it will increase patient exposure
c. it will decrease exposure time
d. it will increase mottle |
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Definition
| b. it will increase patient exposure |
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Term
If your cassette was incompletely closed what would the film probably look like?
a. it would have branching black lines
b. it would have a white strip at the edge
c. it would have branching white lines
d. it would have a black strip at the edge |
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Definition
| d. it would have a black strip at the edge |
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Term
What exists on a film after you have exposed the patient but before processing it?
a. a light image
b. a latent image
c. a dark image
d. a well exposed image |
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Definition
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Term
Too high of a kV will have which effect on the film?
a. quantum mottle
b. high contrast
c. blurry images
d. increased penumbra |
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Definition
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Term
Which combination of screen light and film color is preferred?
a. blue light and green film
b. green light and blue film
c. purple light and green film
d. green light and purple film |
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Definition
| d. green light and purple film |
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Term
Which of the following is the reason why many recommend that you NOT use an extremity screen system in an office that performs mainly spine films?
a. the extremity film is too expensive
b. the extremity film will demonstrate more unsharpness
c. the extremity film increases the radiation to the patient
d. the extremity film may get mixed with the spine cassettes and require retakes |
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Definition
| d. the extremity film may get mixed with the spine cassettes and require retakes |
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Term
Which of the following is a problem when storing x-ray film flat instead of upright?
a. fogging
b. light leak
c. static electricity
d. pressure marks |
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Definition
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Term
About how often should you clean intensifying screens?
a. three months
b. one year
c. ten years
d. whenever they get dirty |
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Definition
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Term
About how many 14"x17" films should be run through an automatic processor in a week before it is economically feasible?
a. 5-10
b. 15-20
c. 20-25
d. 40-45 |
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Definition
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Term
How would your processed film appear if you decreased the recommended developing time and maintained the recommended temperature?
a. it would have a green tint
b. it would be too light
c. it would be too dark
d. it would have brown stains |
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Definition
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Term
What is the usual recommended optimal developing temperature for manual processing?
a. 98 degrees
b. 90 degrees
c. 68 degrees
d. 60 degrees |
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Definition
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Term
Sensitometry is a way to do which of the following?
a. to check collimation accuracy
b. to check consistency of processing
c. to measure the density of a film
d. to measure the radiation dose to sensitive tissue |
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Definition
| b. to check consistency of processing |
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Term
In which phase of processing does the latent image become the manifest image?
a. developing
b. rinsing
c. fixing
d. drying |
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Definition
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Term
densitometry and sensitometry are primarily used for which purpose?
a. to monitor film fogging
b. to monitor patient exposure
c. to monitor processor function
d. to monitor consistency of the mAs |
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Definition
| c. to monitor processor function |
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Term
A curtain effect from a lack of fluids being removed in automatic processing is caused by a malfunction of which of the following?
a. master rollers
b. guide shoes
c. splash gaurds
d. transport rollers
e. squeegee rollers |
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Definition
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Term
A high intensity lamp is usually used for which of the following?
a. to allow for greater versatility in the x-ray technique
b. to better see under-exposed areas on a film
c. to better see over-exposed areas on a film
d. to see through a very thin patient
e. to better see the entire film |
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Definition
| c. to better see over-exposed areas on a film |
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Term
Which of the following is the proper arrangement of the five subject densities seen on the radiograph from the most dense to the least dense?
a. water, oil, heavy metal, air
b. air, oil, water, metal, heavy metal
c. Heavy metal, metal, water, oil, air
d. metal, oil, air, water, heavy metal |
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Definition
| c. Heavy metal, metal, water, oil, air |
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Term
Why are the renal shadows often seen on an A-P lumbar film?
a. due to contrast between water and air
b. due to contrast between metal and water densities
c. due to contrast between oil and water densities
d. due to contrast between air and oil densities
e. due to the contrast between metal and air densities |
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Definition
| c. due to contrast between oil and water densities |
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Term
The thickness of lead that is needed for primary and secondary protective barriers for an x-ray facility are which of the following?
a. 1/32 and 1/64 inches respectively
b. 1/16 and 1/32 inches respectively
c. 1/8 and 1/16 inches respectively
d. 1/4 and 1/8 inches respectively |
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Definition
| b. 1/16 and 1/32 inches respectively |
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Term
In the event that a patient (unruly child) needs to be held during an x-ray procedure, who should be selected for the task?
a. you
b. a passer by
c. your office assistant if not pregnant
d. the 50 year old grandmother if not pregnant |
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Definition
| d. the 50 year old grandmother if not pregnant |
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Term
Where should the exposure switch be located?
a. on a long cord
b. inside the booth
c. on the bucky
d. just outside the lead window |
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Definition
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Term
If you wanted to see the sacroiliac joints and the L5 disc space without distortion on an A-P view, which would be the BEST thing to do?
a. direct the central ray A-P with a cephalic tube tilt
b. diract the central ray P-A with a cepalic tube tilt
c. direct the central ray A-P with no tube tilt
d. direct the central ray P-A with no tube tilt |
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Definition
| a. direct the central ray A-P with a cephalic tube tilt |
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Term
62 year old female needing thoracic films with A-P diameter 29cm. What would be essential to use when taking films?
a. a grid
b. high frequency unit
c. female gonad shield
d. radiographic table
e. 400 speed screen cassetes |
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Definition
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Term
Old woman has scoliosis, A-P shows 22 degree convexity to the right. How do you proceed?
a. take P-A now
b. take film with right side against the grid
c. take film with left side against the grid
d. the side you put against the grid doesn't matter
e. take a lateral lumbosacral film next |
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Definition
| b. take a film with her right side against the grid |
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Term
Which of the following would produce a sharper image?
a. non screen film
b. faster intensifying screens
c. longer exposure time
d. shorter FFD |
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Definition
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Term
In order to justify an automatic processor, 20-25 14"x17" films should be run through in what time period?
a. per day
b. per week
c. per month
d. per year |
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Definition
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Term
If your temperature is too high in the dryer part of your automatic processor, which of the following would be the most likely?
a. the films would probably be too dark
b. the films will probably be discolored
c. the films will probably have a shrunken base
d. the films will probably have water spots |
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Definition
| d. the films will probably have water spots |
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Term
With manual processing after a film is first put into a solution what is the next recommended thing to do?
a. agitate it
b. keep it motionless
c. reload the cassette
d. turn on the light |
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Definition
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Term
If you have two films of a patient that demonstrate a kissing artifact, why do you suspect it could be necessary to retake the films?
a. because the films will have too much radiographic density
b. because the area of contact will appear dull
c. because the contact areas will discolor with time
d. because kissing artifacts can be mistaken for pathologies |
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Definition
| b. because the area of contact will appear dull |
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Term
If your developer smells like ammonia, what does it usually mean?
a. it is too strong
b. it is oxidized
c. it is too weak
d. it has fixer in it |
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Definition
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Term
Where would you place the wire mesh for a wire mesh test?
a. on the collimator
b. on the cassette
c. in the cassette
d. under the cassette |
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Definition
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Term
Which of the following is not one of the criteria for holding a patient?
a. never use a pregnant female to hold a patient
b. the holder should wear protective apron and gloves
c. only employees should hold patient
d. the holder should be over 18 years old |
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Definition
| c. only employees should hold patient |
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Term
What is the occupational annual dose limit for whole body exposure?
a. .5 rem
b. 5 rem
c. 15 rem
d. 50 rem |
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Definition
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Term
Let's say you have just installed an automatic processor in your dark room. It doesn't fit. What part must be in the darkroom?
a. first set of squeegee rollers
b. tempter control system
c. electrical system
d. transport rollers
e. feed tray |
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Definition
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Term
Which combination of screen light and film color is prefered?
a. blue light and green film
b. green light and blue film
c. purple light and green film
d. green light and purple film |
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Definition
| d. green light and purple film |
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Term
How will dirt on an intensifying screen appear on the exposed film?
a. white branching streaks
b. black branching streaks
c. white specks
d. black specks |
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Definition
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Term
Which of the following would lead to the least exposure of a patient to ionizing radiation?
a. a grid
b. an extremity cassette
c. a dual screen system
d. an underpart filter |
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Definition
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Term
Which of the following effects will too fast of a film screen combination have on the radiograph?
a. it will have very short scale contrast
b. it will require greater patient exposure
c. it will show a lack of penetration
d. it will demonstrate graniness |
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Definition
| d. it will demonstrate graniness |
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Term
Which speed is preferred in general spinal radiography with a rare earth system?
a. 100
b. 200
c. 400
d. 800 |
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Definition
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Term
Having a thicker phosphor layer in your screens will have which effect?
a. produce lighter image
b. produce clearer image
c. make screen slower
d. make the screen faster |
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Definition
| d. make the screen faster |
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Term
What does a wire mesh test test for?
a. light leaks in the cassette
b. speed accuracy of the screens
c. if the film and screens are spectrally matched
d. if there is good contact between screens and film |
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Definition
| d. if there is good contact between screens and film |
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Term
Why should bad films that you have retaken not be destroyed?
a. they are protected by the statute of limitations law
b. they can be recycled by the film company
c. they contain poisonous material
d. they can be sold fo silver |
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Definition
| d. they can be sold for silver |
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Term
An arbitrary number for 100 speed screens is referred to as ___.
a. par
b. fast
c. high
d. rare earth |
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Definition
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Term
The sheet of lead in a cassette serves what purpose?
a. to filter the beam
b. to protect the patient
c. to act as a reflective layer
d. to help prevent back scatter |
|
Definition
| d. to help prevent back scatter |
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Term
Too high of a kV will have which effect on the film?
a. quantum mottle
b. high contrast
c. blurry images
d. increased penumbra |
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Definition
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Term
Which type of film is preffered in a chiropractic office?
a. single emulsion
b. double emulsion
c. direct exposure
d. par speed exposure |
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Definition
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Term
Black branching streaks randomly placed on the film is usualy due to what?
a. light leak
b. static electricity
c. bending of the film
d. cracks in the screen
e. too high kV |
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Definition
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Term
If you were manually processing your films, your developer temperature was 65 degrees and you developed for five minutes and fixed for ten minutes, what would your film look like?
a. clear
b. light
c. dark
d. discolored |
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Definition
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Term
Which of hte following is the recommended intensifying screen for use in a chiropractic office?
a. calcium tungsten
b. direct exposure
c. single screen
d. rare earth |
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Definition
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Term
Which speed is preferred in general spinal radiography with a rare earth system?
a. 100
b. 200
c. 400
d. 800 |
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Definition
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Term
Which of the following problems could occur if your intensifying screen is warped?
a. scratches on the film from roughened edges
b. film pressure marks from increased contact
c. blurry area from bad contact
d. light leak from bent cassette |
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Definition
| c. blurry area from bad contact |
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Term
What would oxidized developer look like?
a. clear
b. yellow
c. orange
d. brown |
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Definition
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